A model study on the mechanism of inhibition of fatty acyl desaturases by cyclopropene fatty acids
作者:Jordi Quintana、Mireia Barrot、Gemma Fabrias、Francisco Camps
DOI:10.1016/s0040-4020(98)00611-5
日期:1998.8
3-carboxycyclopropene or cyclopropenone derivatives, react with 1-propanethiol to give alkylthiocyclopropanes. None of the cyclopropenes and cyclopropene derivatives investigated reacted with other aminoacid chemical probes. These overall results support that inhibition of desaturases by cyclopropene fatty acids is caused by reaction of the unsaturated moiety with a cysteine residue of the enzyme active site.
1,2-二烷基环丙烯,而不是相应的3-羧基环丙烯或环丙烯酮衍生物,与1-丙硫醇反应生成烷基硫代环丙烷。研究的环丙烯和环丙烯衍生物均未与其他氨基酸化学探针反应。这些总体结果支持环丙烯脂肪酸对去饱和酶的抑制是由不饱和部分与酶活性位点的半胱氨酸残基反应引起的。